package containers;

import java.util.*;

public class FailFast {
    public static void main(String[] args){
        Collection<String> c = new ArrayList<String>();
        Iterator<String> it = c.iterator();
        ((ArrayList<String>) c).add("An Object");
        try
        {
            String s = it.next();
        }
        catch (ConcurrentModificationException e){
            System.out.println(e);
        }
    }
}
